Quote:
Originally Posted by bardabe
You're in for a rude awakening, i hope you have deep pockets. with that said, the N/A and TT trans is exactly the same only difference is the flywheel housing. haven't heard anyone breaking rear differentials. Axles are usually good for right around 500-550whp if you plan to drift on 265/275 R-compounds or Drag with lots of boost and slicks then it will not hold i'd say more than maybe 400whp
the prop-shaft is pretty much useless after 450-500 the center bushing goes so you'll want a nice one piece unit. transmission will probably start to grind 3rd adn 4th gear after some hard driving. 1st gear might explode with enough boost and slicks. people seem to be holding 450ish whp fine. anything after that you're counting your days. (depending on the amount of grip and how hard you launch / beat your clutch)
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I think the weight of the vehicle and trq play a larger role in the destruction of driveline components than HP. I'm not going to blow my Z-trans at 500whp w/ 400ftlbs of trq. However a VG may at 500whp and 600ftlbs trq. These transmissions have been behind some fast drag cars, so I highly doubt (especially without documentation or references) it'll blow on a 275 drag radial at xxx wil grenade the trans.
Now, with that said, Z transmissions have super soft syncros and baulk ring clips that tend to break and fall down into the bottom of the case. This is what actually causes the grinding issues experienced in most older/abused transmissions. It has nothing to do with the strength of the gears.